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Finding the Fourth Proportional to 57,885.06, 86,768.42 and 39,167.07

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Solution

The fourth proportional to 57,885.06, 86,768.42 and 39,167.07 is: 58,710.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,885.06 : 86,768.42 = 39,167.07 : x
  2. Step 2: Convert to fraction form
    57,885.06/86,768.42 = 39,167.07/x
  3. Step 3: Cross multiply
    57,885.06x = 86,768.42 × 39,167.07
  4. Step 4: Simplify right side
    57,885.06x = 3,398,464,584.09
  5. Step 5: Solve for x
    x = 3,398,464,584.09/57,885.06
  6. Step 6: Final answer
    x = 58,710.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.